Notacanthus Arrontei (Notacanthus arrontei), first described by García, Baldó, Cojan & Carlos, 2024 is a medium-sized fish in the family Notacanthidae (order Notacanthiformes). Adults typically reach 29.50 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 670 to 927 metres. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.
This species is distinguished by the following characters: head and body strongly compressed; mouth small and inferior; dorsal fin composed of short, isolated spines; long-based anal fin, grading from spines anteriorly to soft trays posteriorly; minute, adherent cycloid scales; small teeth on the premaxillae, palatines, and dentaries, none on the maxillae; gill membranes united to each other and not connected to the isthmus by a frenum; gill rakers well-developed .Cross section: compressed.
Behavioural data for Notacanthus Arrontei is currently being reviewed.
Marine; benthopelagic; depth range 670 - 927 m . Tropical
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